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How to Customize the Look and Functionality of OS X

People often write of OS X as a restricted, un-customizable operating system. But if you know where to look, you can change a lot about how your Mac looks and works. Here’s how to do it.

Customize the Look of OS X

A lot of people love the way OS X looks, but it’s not perfect. Changing things around isn’t as easy as it is with other operating systems, but it’s definitely possible. Here are a few tools and manual tricks to create your own customized OS X desktop that’s all your own.

Geektool Skins Your Entire Desktop

GeekTool is a tool that makes it dead simple to customize the look of your desktop and add a ton of information. With it, you can embed objects and information right onto your desktop to turn your Mac into a central hub of information.

You can use Geektool as heavily or lightly as you’d like. Each little widget comes from a public repository, so you can cover your entire desktop in everything you want, or just use for something simple like a calendar. If you’re looking for more ideas for customization, this subreddit is a great place to start.

Flavours Customizes the Colors of OS X

Not everyone is a fan of OS X’s drab color scheme, but if you’re willing to pay for it, Flavours ($ 19.90) is an easy way to customize the color sets of the entire interface in OS X.

Flavours uses themes to change the color scheme of OS X. You can use other people’s themes or make your own in the app. All you need to do is fire up Flavours and start skinning the colors of various elements of the OS X interface. You can adjust different layers, use gradients, or make your own backgrounds. It’s a bit tough to make a design that looks good on your own, but the themes repository provides plenty of different skins to choose from. If Flavours doesn’t do what you want, CrystalClear is an excellent alternative.

Lion Tweaks Fixes All Kinds of Minor Annoyances

Lion Tweaks is a free app that lets you fix some of OS X’s more annoying features. It works with Lion, Mountain Lion, and Mavericks. It doesn’t allow you to do any of the deep theming of tools like Flavours or GeekTool, but it does let you fix little quirks in OS X. Once it’s installed, you can easily toggle a ton of different settings.

You can do a ton of things with Lion Tweaks, but here’s just a few of our favorites:

Show/hide the user Library folder

Change to a 3D or 2D dock

Enable iTunes dock animations

Remove Spotlight’s icon

Change the Notification Center background

Change the iCal interface

Customize the Launch Center background

Essentially, Lion Tweaks does stuff you can also do with a Terminal command, but it makes it super easy to do.

Customize the Functionality of OS X

It’s not all about how OS X looks though. Sometimes, you want to customize how it works. You have plenty of options for doing this. With a little tweaking, you can customize how the keyboard works, how the touchpad operates, and plenty more.

Create customized workflows using AppleScript to do everything from search open tabs to integrate Evernote directly into your operating system

Quickly send emails

Search specific websites with a keyboard shortcut

Search through files and specific folders

Basically, Alfred operates like a feature-packed version of OS X’s built-in Spotlight and makes it so you can do a ton of stuff with just your keyboard.

Keyboard Maestro Automates Everything on Your Mac

Windows users love AutoHotKey, and the closest equivalent on a Mac is Keyboard Maestro ($ 36, but you get a 30 day trial period when you download it). Like AutoHotKey, Keyboard Maestro launches macros from your keyboard so you can launch different actions with a keyboard shortcut.

For example, you can set it so a keyboard shortcut opens all your applications and URLs for work, trigger a macro when your wireless network changes, trigger a macro when you plug in a specific USB device, automatically arrange windows, and plenty more.

Keyboard Maestro’s documentation is dense but that’s because the app does a ton of stuff. If you’re just getting started with it, you can use other people’s macros to get ideas for how to use it. That said, here are a few guides to help you get started with Keyboard Maestro:

With a little work, you can set up Keyboard Maestro so that the bulk of your repetitive tasks are automated so you can work a lot faster.

BetterTouchTool Customizes Mouse and Gesture Actions

Macs have an incredible trackpad, but unfortunately Apple doesn’t allow you to make good use of them. BetterTouchTool is a free tool that lets you customize what happens when you use different gestures.

Anything that has a keyboard shortcut can become a gesture. For example, you can set it up so a three finger swipe up in Chrome pulls resizes the window, or so a four finger swipe down in Illustrator undos your last actions. BetterTouchTool also supports the Magic Mouse, normal mice, the Apple Remote, and the Leap Motion. Setup is as simple as opening the app, picking a gesture, and then assigning a keyboard shortcut to it.

Do Everything Else with Automator

If you want to dig into making your Mac work exactly like you want, it’s time to use Automator. If you haven’t used it before, Automator allows you to create your own workflows to automate repetitive tasks.

Essentially, once you get the hang of Automator, you can automate your Mac in all kinds of ways. Combine that with an app like Keyboard Maestro and you’ll be able to bend your Mac to your will in a ton of ways. Mix in some custom themes and Geektool widgets and suddenly you Mac barely looks like a Mac anymore.

It’s also worth pointing to a few other single-purpose apps that help customize the functionality of OS X. Here are just a few of our favorites:

Sure, it takes a little bit of work, but you can actually do a ton of customizing in OS X. Just don’t go too crazy and use everything at once.